How to remove the horizontal scroll bar or the vertical scroll bar for the IFRAME scroll bar

How to remove the horizontal scroll bar or vertical scrollbar about the IFRAME scroll bar about <iframe>
You can remove the two scroll bars of an IFRAME by setting the property scrolling= "No".

How do I remove the horizontal scroll bar or the vertical scrollbar only, and some Web page components remove the horizontal or vertical scroll bars by setting the Overflow-x: Hidden or Overflow:hidden of the component's Style property. However, the IFRAME does not work.

The following methods can be used to remove:
Add a page in an IFRAME that contains
<style>
HTML {Overflow-x:hidden;}
</style>
You can remove the horizontal scroll bar, or you can use the same method to remove the vertical scroll bar.

How to remove the horizontal scroll bar or the vertical scroll bar for the IFRAME scroll bar